:root{
  --ground:#F2F4F6; --surface:#FFFFFF; --ink:#101826; --muted:#4E5A6B; --line:#D5DBE3;
  --night:#243242; --night-ink:#EEF2F6; --accent:#E0B84A; --accent-ink:#141B24; --accent-text:#8A6510; --sky:#3E7BC4;
  --display:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif;
  --body:"Public Sans","Segoe UI",system-ui,sans-serif;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --ground:#0B1220; --surface:#131C2C; --ink:#E8EDF4; --muted:#A3AFC0; --line:#26334A;
    --night:#141D28; --accent:#E6C25C; --accent-text:#E6C25C; --sky:#78A9E6;
  }
}
:root[data-theme="dark"]{
  --ground:#0B1220; --surface:#131C2C; --ink:#E8EDF4; --muted:#A3AFC0; --line:#26334A;
  --night:#141D28; --accent:#E6C25C; --accent-text:#E6C25C; --sky:#78A9E6;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ground);color:var(--ink);font:16px/1.65 var(--body);overflow-x:hidden}
a{color:inherit}
img{max-width:100%;height:auto}
.wrap{max-width:1080px;margin:0 auto;padding-inline:20px}
.narrow{max-width:760px}
h1,h2,h3{font-family:var(--display);line-height:1.12;text-wrap:balance;margin:0}
p{margin:0 0 1em}
.eyebrow{font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;font-weight:600;color:var(--accent-text);margin-bottom:10px}
.skip{position:absolute;left:-999px}
.skip:focus{left:12px;top:12px;background:#fff;color:#000;padding:8px 12px;z-index:10}

/* top bar */
.topnav{background:#1A2532;color:#EEF2F6;font-size:.95rem}
.topnav .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:6px 18px;padding-block:12px}
.topnav .home{font-family:var(--display);font-weight:800;text-decoration:none;letter-spacing:.01em}
.topnav .home span{color:var(--accent)}
.topnav nav{display:flex;flex-wrap:wrap;gap:4px 18px}
.topnav nav a{text-decoration:none;color:#C9D3E0}
.topnav nav a:hover,.topnav nav a[aria-current]{color:#fff;text-decoration:underline;text-underline-offset:4px}

.brandbar{background:linear-gradient(90deg,#344758,#536472);display:flex;justify-content:center;padding-inline:16px}
.brandbar img{display:block;width:100%;max-width:720px}

/* hero */
.hero{background:linear-gradient(180deg,#536472 -40%,#243242 60%);color:var(--night-ink);padding-block:56px 64px}
.hero .eyebrow{color:var(--accent)}
.hero h1{font-size:clamp(2.3rem,6vw,4rem);font-weight:800;letter-spacing:-.02em;max-width:18ch}
.hero .lede{color:#C3CDDB;max-width:58ch;font-size:1.12rem;margin:18px 0 28px}
.hero.small{padding-block:44px 48px}
.hero.small h1{font-size:clamp(2rem,5vw,3.2rem)}
.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);padding:13px 22px;border-radius:6px;text-decoration:none;font:600 1rem var(--body)}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;color:inherit;border:1px solid currentColor}
.btns{display:flex;flex-wrap:wrap;gap:10px}
a:focus-visible{outline:3px solid var(--sky);outline-offset:2px}

section{padding-block:60px}
section.alt{background:var(--surface);border-block:1px solid var(--line)}
.sec-head{margin-bottom:28px;max-width:62ch}
.sec-head h2{font-size:clamp(1.7rem,4vw,2.4rem)}
.sec-head p{color:var(--muted);margin-top:12px}

/* answer block */
.answer{font-size:1.15rem;max-width:66ch}
.answer strong{font-weight:600}

/* method */
.lmt{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.lmt div{background:var(--surface);border:1px solid var(--line);border-top:4px solid var(--accent);border-radius:8px;padding:20px}
.lmt h3{font-size:1.5rem;margin-bottom:6px}
.lmt p{color:var(--muted);margin:0}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:24px;display:flex;flex-direction:column}
section.alt .card{background:var(--ground)}
.card .for{font-size:.82rem;color:var(--accent-text);font-weight:600;text-transform:uppercase;letter-spacing:.08em}
.card h3{font-size:1.35rem;margin:8px 0 10px}
.card p{color:var(--muted)}
.card dl{margin:0 0 18px;display:grid;gap:6px;font-size:.95rem}
.card dt{font-weight:600;display:inline}
.card dd{margin:0;display:inline;color:var(--muted)}
.card .more{margin-top:auto;font-weight:600;color:var(--sky);text-decoration:none}
.card .more:hover{text-decoration:underline}

/* books */
.books{display:grid;grid-template-columns:220px 1fr;gap:32px;align-items:start}
.books img{border-radius:6px;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.booklist{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:10px}
.booklist li{border-top:1px solid var(--line);padding-top:10px}
.booklist a{font-weight:600;color:var(--sky)}

/* services */
.svc{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.svc div{border-left:3px solid var(--accent);padding:4px 0 4px 16px}
.svc h3{font-size:1.15rem;margin-bottom:4px}
.svc p{color:var(--muted);margin:0}

/* faq */
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:0 20px;margin-bottom:10px}
.faq summary{cursor:pointer;font-family:var(--display);font-weight:700;font-size:1.15rem;padding:16px 0;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--accent-text)}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--muted)}
.faq-page h2{font-size:1.4rem;margin:36px 0 10px}
.faq-page p{color:var(--muted)}

/* about */
.prose{max-width:66ch}
.prose h2{font-size:1.6rem;margin:36px 0 12px}
.prose ul{padding-left:20px;color:var(--muted)}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:24px 0}
.facts div{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:14px 16px}
.facts dt{font-size:.78rem;text-transform:uppercase;letter-spacing:.1em;color:var(--accent-text);font-weight:600}
.facts dd{margin:4px 0 0}

/* contact band */
.cta{background:#243242;color:var(--night-ink)}
.cta h2{font-size:clamp(1.7rem,4vw,2.4rem)}
.cta p{color:#C3CDDB;max-width:58ch}
.cta a.plain{color:#fff}

footer{background:#1A2532;color:#9FB0C6;font-size:.9rem;padding-block:28px}
footer a{color:#C9D3E0}
footer .wrap{display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between}

@media (max-width:820px){
  .cards,.lmt{grid-template-columns:1fr}
  .books{grid-template-columns:1fr}
  .books img{max-width:180px}
  section{padding-block:44px}
}